330 citations · 2.7k across the 41 of their papers we have counts for
41 papers
Broadband ptychography using curved wavefront illumination
Daniel S. Penagos Molina, Lars Loetgering, Wilhelm Eschen +2
We examine the interplay between spectral bandwidth and illumination curvature in ptychography. By tailoring the divergence of the illumination, broader spectral bandwidths can be…
High-speed and wide-field nanoscale table-top ptychographic EUV imaging and beam characterization with a sCMOS detector
Wilhelm Eschen, Chang Liu, Daniel S. Penagos Molina +3
We present high-speed and wide-field EUV ptychography at 13.5 nm wavelength using a table-top high-order harmonic source. By employing a scientific complementary metal oxide semico…
Visualizing the ultra-structure of microorganisms using table-top extreme ultraviolet imaging
Chang Liu, Wilhelm Eschen, Lars Loetgering +10
Table-top extreme ultraviolet (EUV) microscopy offers unique opportunities for label-free investigation of biological samples. Here, we demonstrate ptychographic EUV imaging of two…
500 W rod-type 4x4 multi-core ultrafast fiber laser
A. Klenke, A. Steinkopff, C. Aleshire +10
We present a coherently-combined femtosecond fiber CPA system based on a rod-type, Ytterbium-doped, multicore fiber with 4x4 cores. A high average power of up to 500 W (after combi…
The scaling potential of beam-splitter-based coherent beam combination
Michael Mueller, Christopher Aleshire, Joachim Buldt +4
The impact of nonlinear refraction and residual absorption on the achievable peak and average power in beam-splitter-based coherent beam combination is analyzed theoretically. Whil…
Multipass cell for high-power few-cycle compression
Michael Mueller, Joachim Buldt, Henning Stark +2
A multipass cell for nonlinear compression to few-cycle pulse duration is introduced comprising dielectrically enhanced silver mirrors on silicon substrates. Spectral broadening wi…